THIS IS A TEST INSTANCE. Feel free to ask and answer questions, but take care to avoid triggering too many notifications.

Revision history  [back]

That's either a crashing bug in Npcap (or WinPcap) or in Windows itself. My guess is the latter, because it crashed after the capture stopped. Report it to Microsoft; if they say it's a third-party driver, and indicate that it's "Npcap" or "NPF", report it on the Npcap issue list.